What Is the Iris on a Camera Lens?

Answer The camera iris is the mechanism in the lens that controls the size of the opening through which light will pass to the digital sensor or film. The opening in the iris is known as the aperture. The... Read More »

Top Q&A For: What Is the Iris on a Camera Lens

You recently purchased a quantaray lens 28-200mm D aspherical lens for your nikon D80 camera The lens will not focus on a subject unless you are at least 3 feet away Why is that's?

No. Architectural photography requires control over converging vertical lines. Anytime you shoot a building and don't hold the camera perfectly perpendicular to the building's surface, the vertical... Read More »

Nikon N50 film camera body with several nice lens Is there a digital camera body these lens will fit on?

How do you attach a 52mm camera lens to a 62mm camera lens?

Most DSLR's include a "Sports" shutter speed function. That's what i use so my images arern't blurry. Hope this helps!

Why does my basic camera have a wide angle lens I bought a canon 8mp camera and the lens is wide angle leaving shots of boxed shaped items to be curved.?

Two possible answers:1. If the curve is really exaggerated and really rounds boxes so they tend to look like a ball that "kind of" have four corners, then you may have a "fisheye" lens.2. Some less... Read More »